can someone help pls.

Answer:

Platelets help the blood clotting process (or coagulation) by gathering at the site of an injury, sticking to the lining of the injured blood vessel, and forming a platform on which blood coagulation can occur. This results in the formation of a fibrin clot, which covers the wound and prevents blood from leaking out.

Explanation:

Blood is composed of plasma, red blood cells, white blood cells, and platelets. Blood platelets play a role in coagulation (the clotting of blood to stop bleed from an open wound); white blood cells play an important role in the immune system; red blood cells transport oxygen and carbon dioxide.

yeah that's all I can think of

Answer:

platelets

Explanation:

Answer:

So the central dogma of molecular biology describes the journey from DNA to protein product:

DNA --transcription--> mRNA --translation--> Protein

Assuming the DNA sequence provided is the template strand (rather than the complimentary coding strand), we start by transcribing the sequence into mRNA starting on the 3' end of the DNA towards the 5' end (which would build the mRNA 5' to 3'). This process involves the enzyme "RNA polymerase," which can only add nucleotides to the 3' end of the mRNA, just like how DNA polymerase can only synthesize DNA in the 5' to 3' direction. The RNA polymerase will bind to the template DNA strand and synthesize the complimentary mRNA, substituting uracil for thymine (since RNA does not contain thymine like DNA).

In terms of transcribing the sequence given to you, we'll have to work backwards + flip it around to get the 5' to 3' mRNA since the DNA is given 5' to 3' rather than 3' to 5'. Due to the length and the fact that we'll have to use triplets in translation anyways, it can help to break the sequence into triplet codons now.

5’-AAG | TTA | ATG | AGA | AAT | CGA | CAT | GGG | GCG | CCG | AAA | GTA | TAA | CCG | TCT | TAG | AAT | AGC-3’

We can then cross out each codon as we transcribe it and flip the sequence to be 5'-3' mRNA:

mRNA: 5'- GCU | AUU | CUA | AGA | CGG | UUA | UAC | UUU | CGG | CGC | CCC | AUG | UCG | AUU | UCU | CAU | UAA | CUU -3'

Normally, mRNA sequences start with "AUG" which is the start codon (and codes for Methionine), but I'll assume this is just for practice translating + transcribing in general. There's also a stop codon before the end but I'll assume the same again.

Translation involves three main steps - initiation, elongation, and termination. Initiation involves the translation ribosome assembling around the mRNA starting at the 5' end start codon, and tRNA carrying an amino acid binding to the complimentary section of the mRNA. As each tRNA attaches and the ribosome moves along the mRNA, the amino acids on each tRNA are bonded into a longer and longer peptide chain and the now amino acid-less tRNA are ejected (elongation). Termination occurs when a stop codon is reached, the ribosome will end elongation and help fold the protein into its final structure.

To translate the mRNA sequence here we'll need an amino acid/mRNA codon chart. I don't believe I can attach an image here, but looking up those exact words should yield the right results in images.

5'- GCU | AUU | CUA | AGA | CGG | UUA | UAC | UUU | CGG | CGC | CCC | AUG | UCG | AUU | UCU | CAU | UAA | CUU -3'

Ala - Ile - Leu - Arg - Arg - Leu - Tyr - Phe - Arg - Arg - Pro - Met - Ser - Ile - Ser - His - STOP - Leu

Amino acids are often abbreviated into three letters (Ala = alanine, Met = methionine, etc), and sometimes are abbreviated as single letters, though I've only seen that for sequencing databases.

In terms of locations for each of these processes, transcription occurs in the nucleus for eukaryotes and translation in the ribosomes/cytoplasm.

If the sequence of DNA is TTA, the matching mRNA sequence is UUA (since RNA uses uracil rather than thymine).

mRNA (messenger RNA) is an instance of RNA molecule that transports genetic data from the cell nucleus to the cytoplasmic ribosomes, where it serves as a template for the synthesis of proteins. The mRNA sequence is a straight line of nucleotides (A, U, G, C) that matches to the DNA template strand's sequencing of codons (triplets of nucleotides).

So, for the codon of the mRNA, UUA, the complementary anticodon on the tRNA would have to be AAA, because adenine forms two hydrogen bonds with uracil in RNA. As a result, the anticodon AAA would be present in the tRNA molecule that would transport amino acids to the ribosome in response to the mRNA codon UUA.

Thus, if the sequence of DNA is TTA, the matching mRNA sequence is UUA (since RNA uses uracil rather than thymine).

Learn more about mRNA sequence, here:

https://brainly.com/question/22173633

#SPJ2

Answer:

frog is the answer okkkkkkkkkkkkkkkk

Frog

because a baby frog is called a tadpol

Answer:

heart disease is correct

There are 6. Lysosome, Endoplasmic Reticulum, Golgi Apparatus, Chloroplast, Nucleus, Mitochondrion

Answer:

Evolution means change in the physical features of an organism.

Explanation:

Evolution means change in the physical features of an organism. Evolution occurs in the population of an organisms due to various factors such as mutation, non-random mating and natural selection. Nonrandom mating occurs when an organism prefer mating with particular superior organisms or with the similar organism. Mutation in the genetic makeup of an organism is also responsible evolution. this mutation occurs when an organism experience ultraviolet radiation from the sun, or also occur if an error in DNA during cell division. Gene flow is also known as gene migration is the transfer of genetic material or traits from one population to another when the organism is migrated to another environment. Some organisms are selected naturally because they have the potential to survive in that environment so they survive and that doesn't adopt itself to the environment, it will extinct from the environment.

Answer:

Alright so a define carrier is a female and 2 is male 3 is male 4 is color

Explanation:

Answer:

Men

Explanation:

Color blindness is a usually a genetic (hereditary) condition (you are born with it). Red/green and blue color blindness is usually passed down from your parents. The gene which is responsible for the condition is carried on the X chromosome and this is the reason why many more men are affected than women.

Answer:

Infants, children and teens, People with lung disease, Current or former smokers

Answer:

Your answer is the third one

Answer:

Using this technique, which they termed 'chemical amputation', the team induced lesions in planaria and investigated which genes were activated over the course of the regeneration process. The pharynx lacks neoblasts, but cells near the wound quickly start dividing and regenerate the amputated organ.

The steps which are involved when a planarian needs to generate new cells include the different stages of regeneration.

Regeneration in the planarians depends on the presence of stem cells called as neoblasts. These newly formed cells are distributed throughout the body and, when part of the worm has been amputated, these parts are activated to reform the tissues which have been removed.

Planarians also use this extraordinary regenerative ability to reproduce asexually. Through the process of transverse fissions, planarians which anchor their tails and also essentially pull themselves apart from each other, resulting in two fragments which include one head and one tail that will regenerate into two genetically identical worms.

Learn more about Planarians here:

https://brainly.com/question/27745799

#SPJ3

Answer:

Hypertonic. Hypertonic refers to more molecules outside the cell than inside

Answer:

hypertonic or A. EDG2020

Explanation:

Answer: Higher temperatures are bad for fish development, growth, feeding, and spawning, and causes coral bleaching. Polar ice is melting, causing the loss of habitat for Arctic animals, Antarctic krill decline, and algae diminishing, which is serious because it's the foundation of the Arctic food web. Rising sea levels will flood 10% of the world's population, because they live at or below sea level, small island nations in the Pacific ocean will be wiped off the map, coral reefs, mangroves, and sea grasses will be unable to keep up with the rising sea levels, and critical coastal habitats, such as sea turtle nesting beaches, will disappear. Warming the oceans alters sea currants and changes the chemistry of seawater. This changes marine species' migratory patterns, and many species that depend on the currant for nutrients or reproduction will be affected by it. Oceans with high carbonic acid harm shell-forming organisms, such as corals, scallops, lobsters, crabs, and some microscopic plankton that are a foundation of the food web across the ocean. Increased acidification limits the ability of certain fish to detect predators, disturbing the food chain.

Answer:

lizards, snakes, turtles, tortoises, crocodiles, alligators and dinosaurs

Explanation:

Reptiles are air-breathing vertebrates covered in special skin made up of scales, bony plates, or a combination of both. They include crocodiles, snakes, alligators, lizards, turtles, and tor- toises. Also dinosaur is a large reptile which appeared 251 million years ago.

Answer:

A. homeostasis.......

Answer:

A. Elastic

Explanation:

Answer:

A. Elastic

Explanation:

answer approved

✅

Answer:

D) hormones of the endocrine system

Answer:

Negative or positive because some are good and some humans are bad

:

Answer:

physical

Explanation:

hope this helps

Answer:chloroplasts and cellulose cell wal

Explanation:

The correct options are:

Protists are a diverse group of eukaryotic organisms that are not animals, plants, or fungi. They are typically unicellular but can also be multicellular or colonial. Protists can be found in a variety of environments, including freshwater, marine, and soil, and can be free-living or symbiotic. They are an ancient group of organisms, and some of the earliest eukaryotes were likely protists.

The diversity of protists is immense, and they exhibit a wide range of characteristics and behaviors. Some protists are photosynthetic, using pigments like chlorophyll to capture sunlight and convert it into energy. Others are heterotrophic, consuming other organisms or organic matter. Some protists are capable of moving through their environment, using structures like flagella, cilia, or pseudopodia to propel themselves. Because of their diversity and importance in many ecosystems, protists are an important area of study in biology.

Learn more about protists, here:

https://brainly.com/question/1626285

#SPJ2

Answer:

what

Explanation:

Within a cell, DNA is housed in the nucleus (in eukaryotic cells) or in the nucleoid region (in prokaryotic cells).

DNA (Deoxyribonucleic acid) is a molecule that carries the genetic instructions used in the growth, development, functioning, and reproduction of all living organisms and many viruses. It is a long, double-stranded helical molecule composed of nucleotides, which are the basic building blocks of DNA.

Each nucleotide consists of a sugar molecule (deoxyribose), a phosphate group, and a nitrogenous base (adenine, guanine, cytosine, or thymine). The sequence of these bases determines the genetic code carried by the DNA molecule.

Thus, the DNA is housed in the nucleus in eukaryotic cells and in the nucleoid region in prokaryotic cells.

Learn more about DNA, here:

https://brainly.com/question/264225

#SPJ3

Answer: Does the organism perform photosynthesis?

Explanation:

Answer:

Mitosis is the division of the nucleus and  cytokinesis is the division of the cytoplasm

Explanation:

Answer:

The only one I know is yellow seeds

Explanation:

Answer:

A

Chlorophyll a absorbs wavelengths of light between 500 to 600 nm.